Malaysia: MMEA detains two vessels over suspected illegal ship-to-ship transfer off Johor

The Malaysian Maritime Enforcement Agency (MMEA) detained tugboat and dredger suspected of conducting an unauthorised ship-to-ship (STS) transfer in Malaysian waters.

The two Malaysian-registered vessels were detained at around 3.20am on Wednesday by an MMEA patrol boat after the agency received public information about two suspicious vessels seen operating alongside each other about 1.4 nautical miles northwest of Tanjung Buai.

MMEA Tanjung Sedili Zone Acting Director Maritime Commander Mohd Najib Sam said further inspection found that the tugboat was operated by five crew members, including its skipper, comprising Malaysian and Indonesian nationals aged between 26 and 58.

The dredger was operated by 13 crew members, including its skipper, all Malaysian nationals aged between 22 and 51.

“Further inspection also found a quantity of oil cargo believed to be without any documents relating to ownership and delivery,” Najib said.

Both vessels and the oil cargo have been seized for further investigation. The total value of the seizure, including the two vessels and the oil cargo, is estimated at MYR 260 million (USD 64 million).

The case is being investigated under Section 491B(1)(K) of the Merchant Shipping Ordinance (MSO) 1952 for allegedly conducting ship-to-ship activities without authorisation from the Malaysian Director of Marine.

The vessels are also being investigated under Section 491B(1)(L) of the MSO 1952 for allegedly anchoring without permission, as well as under the Customs Act 1967 in connection with the oil cargo suspected of lacking the required documentation.

Photo credit: Malaysian Maritime Enforcement Agency
Published: 3 September, 2026